<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>权限管理</el-breadcrumb-item>
      <el-breadcrumb-item>分类参数</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片区域 -->

    <el-card>
      <el-alert title="只允许选择第三级分类" type="warning" show-icon :closable="false"></el-alert>
      <el-row>
        <el-col>
          选择商品分类：
          <el-cascader
            v-model="selectKeys"
            :options="cateList"
            :props="cateProps"
            clearable
            @change="cateHandleChange"
          ></el-cascader>
        </el-col>
      </el-row>

      <!-- tab区域 -->
      <el-tabs v-model="activeName" @tab-click="handleTabClick">
        <!-- 动态参数面板 -->
        <el-tab-pane label="动态参数" name="many">
          <el-button
            type="primary"
            :disabled="isBtnDisabled"
            @click="addParamsDialogVisible=true"
          >添加参数</el-button>
          <!-- 动态表格区域 -->
          <el-table :data="manyTabelData" border>
            <el-table-column type="expand">
              <template slot-scope="scope">
                <el-tag
                  closable
                  type="primary"
                  v-for="(item,i) in scope.row.attr_vals"
                  :key="i"
                  @close = "handleCloseParams(i,scope.row)"
                >{{item}}</el-tag>
                <!-- 添加标签Input -->
                <el-input
                  class="input-new-tag"
                  v-if="scope.row.inputVisible"
                  v-model="scope.row.inputValue"
                  ref="saveTagInputaa"
                  size="small"
                  @keyup.enter.native="handleInputConfirm(scope.row)"
                  @blur="handleInputConfirm(scope.row)"
                ></el-input>
                <!-- 添加标签Button -->
                <el-button v-else class="button-new-tag" size="small" @click="showInput(scope.row)">+ New Tag</el-button>

              </template>
            </el-table-column>
            <el-table-column type="index" label="#"></el-table-column>
            <el-table-column label="版式" prop="attr_name"></el-table-column>
            <el-table-column label="编辑">
              <template slot-scope="scope">
                <el-button
                  type="primary"
                  size="mini"
                  icon="el-icon-edit"
                  @click="showEditParamsDialog(scope.row.attr_name,scope.row.attr_id)"
                >编辑</el-button>
                <el-button
                  type="danger"
                  size="mini"
                  icon="el-icon-delete"
                  @click="removeParams(scope.row.attr_id)"
                >删除</el-button>
              </template>
            </el-table-column>
          </el-table>
        </el-tab-pane>

        <!-- 静态属性面板 -->
        <el-tab-pane label="静态属性" name="only">
          <el-button
            type="primary"
            :disabled="isBtnDisabled"
            @click="addParamsDialogVisible=true"
          >添加属性</el-button>
          <!-- 静态表格区域 -->
          <el-table :data="onlyTabelData" border>
            <el-table-column type="expand">
              <template slot-scope="scope">
                <el-tag
                 closable
                 @close = "handleCloseParams(i,scope.row)"
                  type="primary"
                  v-for="item in scope.row.attr_vals"
                  :key="item.attr_id"
                >{{item}}</el-tag>
                <!-- 添加标签Input -->
                <el-input
                  class="input-new-tag"
                  v-if="scope.row.inputVisible"
                  v-model="scope.row.inputValue"
                  ref="saveTagInputaa"
                  size="small"
                  @keyup.enter.native="handleInputConfirm(scope.row)"
                  @blur="handleInputConfirm(scope.row)"
                ></el-input>
                <!-- 添加标签Button -->
                <el-button v-else class="button-new-tag" size="small" @click="showInput(scope.row)">+ New Tag</el-button>
               
              </template>
            </el-table-column>
            <el-table-column type="index" label="#"></el-table-column>
            <el-table-column label="版式" prop="attr_name"></el-table-column>
            <el-table-column label="编辑">
              <template slot-scope="scope">
                <el-button
                  type="primary"
                  size="mini"
                  icon="el-icon-edit"
                  @click=" showEditParamsDialog(scope.row.attr_name,scope.row.attr_id)"
                >编辑</el-button>
                <el-button
                  type="danger"
                  size="mini"
                  icon="el-icon-delete"
                  @click="removeParams(scope.row.attr_id)"
                >删除</el-button>
              </template>
            </el-table-column>
          </el-table>
        </el-tab-pane>
      </el-tabs>
    </el-card>

    <!-- 添加参数对话框 -->
    <el-dialog
      :title="'添加'+titleText"
      :visible.sync="addParamsDialogVisible"
      width="50%"
      @close="addDiaLogParamsClosed"
    >
      <!-- 添加参数对话框表单区域 -->
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="100px">
        <el-form-item :label="titleText" prop="attr_name">
          <el-input v-model="addForm.attr_name"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="addParamsDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addParams">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改参数对话框 -->
    <el-dialog
      :title="'添加'+titleText"
      :visible.sync="editParamsDialogVisible"
      width="50%"
      @close="editDiaLogParamsClosed"
    >
      <!-- 修改参数对话框表单区域 -->
      <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="100px">
        <el-form-item :label="titleText" prop="attr_name">
          <el-input v-model="editForm.attr_name"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editParamsDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editParams">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  name: "Params",
  data() {
    return {
      //分类列表数据
      cateList: [],
      // 下拉列表选中的值
      selectKeys: [],
      // 下拉列表配置数据
      cateProps: {
        expandTrigger: true,
        value: "cat_id",
        label: "cat_name",
        children: "children"
      },
      //Tab面板区域数据
      activeName: "many",
      //动态参数表格数据
      manyTabelData: [],
      //静态属性表格数据
      onlyTabelData: [],
      //显示与隐藏添加参数对话框
      addParamsDialogVisible: false,
      //添加参数对话框表单数据
      addForm: {
        attr_name: ""
      },
      //添加参数对话框表单数据验证规则
      addFormRules: {
        attr_name: [
          { required: true, message: "请输入参数名称", trigger: "blur" }
        ]
      },
      //修改商品参数数据源
      editForm: {
        attr_name: "",
        attr_id: ""
      },
      //修改参数对话框表单数据验证规则
      editFormRules: {
        attr_name: [
          { required: true, message: "请输入参数名称", trigger: "blur" }
        ]
      },
      editParamsDialogVisible: false
    };
  },
  computed: {
    isBtnDisabled() {
      return this.selectKeys.length === 3 ? false : true;
    },
    cateId() {
      return this.selectKeys[this.selectKeys.length - 1] || null;
    },
    titleText() {
      return this.activeName == "many" ? "动态参数" : "静态属性";
    }
  },
  methods: {
    //获取商品分类列表数据
    async getCateData() {
      const { data: res } = await this.$http.get("categories");
      if (res.meta.status != 200) {
        return this.$message.error("获取商品分类数据失败");
      }
      this.cateList = res.data;
    },
    //更改下拉选择器方法
    cateHandleChange() {
      this.getParamsData();
    },
    //更改TabS面板方法
    handleTabClick() {
      this.getParamsData();
    },
    //获取分类参数方法
    async getParamsData() {
      if (this.cateId != null && this.selectKeys.length === 3) {
        const { data: res } = await this.$http.get(
          `categories/${this.cateId}/attributes`,
          {
            params: { sel: this.activeName }
          }
        );
        if (res.meta.status != 200)
          return this.$message.error("获取分类参数失败");

        res.data.forEach(item => {
          item.attr_vals = item ? item.attr_vals.trim().split(",") : [];
          item.inputVisible = false,
          item.inputValue = ""
        });
        if (this.activeName == "many") {
          this.manyTabelData = res.data;
        } else {
          this.onlyTabelData = res.data;
        }
      } else {
        this.selectKeys = [];
        this.manyTabelData = [];
        this.onlyTabelData = [];
      }
      // console.log(this.manyTabelData,this.onlyTabelData)
    },
    //关闭添加对话框时重置表单
    addDiaLogParamsClosed() {
      this.$refs.addFormRef.resetFields();
    },
    async addParams() {
      const { data: res } = await this.$http.post(
        `categories/${this.cateId}/attributes`,
        {
          attr_name: this.addForm.attr_name,
          attr_sel: this.activeName
        }
      );
      if (res.meta.status != 201)
        return this.$message.error("添加商品参数失败");
      this.getParamsData();
      this.addParamsDialogVisible = false;
    },
    //打开修改分类参数对话框
    showEditParamsDialog(attrName, attrId) {
      console.log(attrName, attrId);
      this.editForm.attr_name = attrName;
      this.editForm.attr_id = attrId;

      this.editParamsDialogVisible = true;
    },
    //重置修改分类参数对话框的表单
    editDiaLogParamsClosed() {
      this.$refs.editFormRef.resetFields();
    },
    // 修改该分类参数方法
    editParams() {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return;
        const { data: res } = await this.$http.put(
          `categories/${this.cateId}/attributes/${this.editForm.attr_id}`,
          {
            attr_name: this.editForm.attr_name,
            attr_sel: this.activeName
          }
        );
        if (res.meta.status != 200) {
          return this.$message.error("修改分类参数失败");
        }
        this.getParamsData();
        this.$message.success("更新分类参数成功");
        this.editParamsDialogVisible = false;
      });
    },
    //删除分类参数成功
    async removeParams(attrId) {
      const romoveParamsConfirm = await this.$confirm(
        "此操作将永久删除参数, 是否继续?",
        "提示",
        {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning"
        }
      ).catch(error => error);
      if (romoveParamsConfirm != "confirm") {
        return this.$message.Info("你取消了删除参数操作");
      }
      const { data: res } = await this.$http.delete(
        `categories/${this.cateId}/attributes/${attrId}`
      );
      if (res.meta.status != 200) {
        this.$message.error("删除参数失败,请重试");
      }
      this.getParamsData();
      this.$message.success("删除参数成功");
    },
    async handleInputConfirm(row){
      if(row.inputValue.trim().length<=0){
         row.inputVisible = false;
         row.inputValue = "";
         return;
      }else{
          row.attr_vals.push(row.inputValue);
           row.inputValue = '';
           row.inputVisible = false;
         const{data:res} = await this.$http.put(`categories/${this.cateId}/attributes/${row.attr_id}`,{
            attr_name:row.attr_name,
            attr_sel:this.activeName,
            attr_vals:row.attr_vals.join()
          })
  
          if(res.meta.status !=200) return this.$message.error("创建参数失败");
      }
      
     
    },
    showInput(row){
         row.inputVisible = true;
       this.$nextTick( _ => {
            this.$refs.saveTagInputaa.$refs.input.focus();
        });
  
    },
  //删除分类参数
 async handleCloseParams(i,row){
       row.attr_vals.splice(i,1);
        const{data:res} = await this.$http.put(`categories/${this.cateId}/attributes/${row.attr_id}`,{
            attr_name:row.attr_name,
            attr_sel:this.activeName,
            attr_vals:row.attr_vals.join()
          })
  }
  },
  created() {
    this.getCateData();
  }
};
</script>

<style lang="less" scoped>
.el-cascader {
  margin: 15px 0;
}
.input-new-tag{
  width:150px;
}
</style>